222313112321 has 4 divisors (see below), whose sum is σ = 222340162644. Its totient is φ = 222286062000.

The previous prime is 222313112309. The next prime is 222313112341. The reversal of 222313112321 is 123211313222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 154276128400 + 68036983921 = 392780^2 + 260839^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222313112321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222313112341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13512830 + ... + 13529271.

It is an arithmetic number, because the mean of its divisors is an integer number (55585040661).

Almost surely, 2^222313112321 is an apocalyptic number.

It is an amenable number.

222313112321 is a deficient number, since it is larger than the sum of its proper divisors (27050323).

222313112321 is an equidigital number, since it uses as much as digits as its factorization.

222313112321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27050322.

The product of its digits is 864, while the sum is 23.

Adding to 222313112321 its reverse (123211313222), we get a palindrome (345524425543).

The spelling of 222313112321 in words is "two hundred twenty-two billion, three hundred thirteen million, one hundred twelve thousand, three hundred twenty-one".